Fix spelling

CONTRIBUTING.rst

@@ -419,7 +419,7 @@ relevant edits to the changelog, (see ``TODO``) including listing the migrations
 for the release. Click on Release, that's it, the rest is automated.
 
 When creating the release, GitHub will save the release info and create a tag with
-the provided version. The new tag will be seen by Github Actions, which will then
+the provided version. The new tag will be seen by GitHub Actions, which will then
 create a wheel (using the tag as version number, thanks to our ``setup.py``), and push
 it to PyPI (using the new API tokens). That tag should also trigger a ReadTheDocs
 build, which will read GitHub releases (thanks to our ``changelog`` extension)

docs/spelling_wordlist.txt

@@ -2,6 +2,7 @@ admin
 app
 async
 asynchronicity
+attrs
 backend
 backoff
 builtin
@@ -19,7 +20,9 @@ Dramatiq
 enqueued
 executables
 formatters
+GitHub
 Godwin
+healthcheck
 healthchecks
 linting
 localhost
@@ -28,8 +31,10 @@ namespaces
 pre
 programmatically
 pycharm
+PyPI
 queueing
 quickstart
+readme
 reimplement
 schemas
 suboptimal